The aim of this master’s thesis is to develop a deeper knowledge of a number of Storytel users’ experiences and use of the audiobook service. Furthermore, the study aims to analyze users' experiences and use of the audiobook service based on the concept of a digital library. Qualitative semi-structured interviews were conducted with eight Storytel users and the empirical material was analyzed using content analysis. The theoretical framework consists of the concept of a digital library based on the characterizing collaborative concepts “Community”, “Service”, “Collection” and “System”. The results show that the respondents’ motives for listening to audiobooks are technological or social. There are three types of audiobook listeners among the respondents regarding the situations in which they listen to audiobooks. Those who listen for large parts of the day, those who engage in other activities while listening, and one lone respondent who listens in the same way as reading printed books. The results also show that there is an interaction between the respondents' use of the audiobook service and the surrounding society, especially regarding audiobook selection. When searching for audiobooks the respondents search bibliographically based on various metadata, browse among the audiobook service's different categories or a combination of these. Also, being able to adjust the playback speed is an important function. The respondents’ descriptions can in several ways be related to the concept of a digital library. The applicability of the characteristic concepts Community, Service, Collection, and System works, though to various extent.

This bachelor thesis aims at investigating how librarians at university libraries experience privacy and user data when using the digital library, and to relate their views to an era of Big Data. Protecting the library user’s privacy is part of the librarian profession and established in the ethical codes published by the International Federation of Library Associations and Institutions (IFLA). Privacy issues have also been of interest for the library- and information science over the years, some studies which have investigated the expectations of privacy by library users. The results show that library users expect the library to protect their privacy and feel safe about the library as an institution for doing so. Earlier studies, as well as my result, shows that this is a major challenge in an era of Big Data, when the digital library depends on third party suppliers and the exchange of data between libraries, suppliers, and library users.  The thesis takes on a qualitative approach. Interviews were held with five librarians using the semi-structured interview as a method. To analyse the result, the thoughts presented by Mai (2019) about personal information in an era of Big Data, and the models of privacy and information presented by Mai (2016, 2019) and Agre (1994), have been used. The result shows that the librarians view on privacy and user data correspond with the perspectives reflected in the Panopticon Model and the Capture Model. That is a traditional view on privacy and information, seeing personal information as a certain type of information that can be controlled. According to this view, violation of a user’s privacy is about not being able to fully protect that personal information. According to Mai (2016, 2019) this is not a satisfactory view on privacy in an era of Big Data. He therefore suggests the Datafication Model. Privacy should, according to Mai (ibid.), be less about the information and more about the situations where the information is being used. This view on privacy and information couldn’t be seen in the result of the study.